The Epson C13T694100 is a behemoth of an ink cartridge that is not only the largest capacity photo black unit available for your printer, but the one with the lowest cost per page too. If you are looking at purchasing the Epson T6941 ink cartridge, then you are a professional printer or designer that knows he can use up the incredible 700ml of photo black ink it contains.Compatible with the Epson SureColor SC-T7200D-PS and a wide range of other top of the line printers the Epson C13T694100 is the extra high capacity selection of printing MONSTERS!